Questions[pdfsam](ubuntu)

I'm on Ubuntu 18.10. Two packages which I'd like to use won't start up. First is pdfsam. Starting from terminal I get the following output:

    Exception in thread "main" java.lang.NoClassDefFoundError: javafx/scene/layout/HBox
    at java.base/java.lang.ClassLoader.defineClass1(Native Method)
    at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1016)
    at java.base/java.security.SecureClassLoader.defineClass(SecureClassLoader.java:174)
    at java.base/jdk.internal.loader.BuiltinClassLoader.defineClass(BuiltinClassLoader.java:802)
    at java.base/jdk.internal.loader.BuiltinClassLoader.findClassOnClassPathOrNull(BuiltinClassLoader.java:700)
    at java.base/jdk.internal.loader.BuiltinClassLoader.loadClassOrNull(BuiltinClassLoader.java:623)
    at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:581)
    at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
    at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
    at org.pdfsam.community.App.main(App.java:34)
Caused by: java.lang.ClassNotFoundException: javafx.scene.layout.HBox
    at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:583)
    at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
    at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
    ... 10 more

Second one is mediathekview. Here the output is as follows:

Fehler: Hauptklasse mediathek.Main kann nicht initialisiert werden
Ursache: java.lang.NoClassDefFoundError: com/jidesoft/utils/ThreadCheckingRepaintManager

I had purged and reinstalled both packages and java components, but still fails.

Any ideas please how to fix this?

Kind regards

Stefan

I have the following versions of OpenJDK installed:

java-1.11.0-openjdk-amd64      1101       /usr/lib/jvm/java-1.11.0-openjdk-amd64
java-1.8.0-openjdk-amd64       1081       /usr/lib/jvm/java-1.8.0-openjdk-amd64

I get the following error using PDFsam in Lubuntu 18.04:

INFO   [12:15:47]: Starting PDFsam
INFO   [12:15:48]: Transparent windows not supported by the platform
INFO   [12:15:48]: Configuring Sejda 3.2.38
INFO   [12:15:48]: Gestarted in 1 second
INFO   [12:15:57]: 3.pdf loaded
INFO   [12:15:57]: 4.pdf loaded
INFO   [12:15:57]: 5.pdf loaded
INFO   [12:15:58]: Starting task (org.sejda.impl.sambox.MergeTask@81b1817) execution.
WARN   [12:15:59]: New fonts found, font cache will be re-built
WARN   [12:15:59]: Building on-disk font cache, this may take a while
ERROR  [12:15:59]: Unexpected error
java.lang.NoClassDefFoundError: Could not initialize class org.sejda.sambox.pdmodel.font.PDType1Font
at org.sejda.impl.sambox.util.FontUtils.<clinit>(FontUtils.java:74)
at org.sejda.impl.sambox.component.PDDocumentHandler.close(PDDocumentHandler.java:231)
at org.sejda.common.ComponentsUtility.nullSafeClose(ComponentsUtility.java:63)
at org.sejda.common.ComponentsUtility.nullSafeCloseQuietly(ComponentsUtility.java:49)
at org.sejda.impl.sambox.MergeTask.closeResources(MergeTask.java:232)
at org.sejda.impl.sambox.MergeTask.after(MergeTask.java:237)
at org.sejda.core.service.DefaultTaskExecutionService.actualExecution(DefaultTaskExecutionService.java:151)
at org.sejda.core.service.DefaultTaskExecutionService.execute(DefaultTaskExecutionService.java:71)
at org.sejda.core.service.DefaultTaskExecutionService.execute(DefaultTaskExecutionService.java:58)
at org.pdfsam.task.TaskExecutionController.lambda$request$0(TaskExecutionController.java:87)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)